Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1993-04-19
1995-04-11
Kostak, Victor R.
Communications: electrical
Condition responsive indicating system
Specific condition
340572, 324239, G08B 1326
Patent
active
054062594
ABSTRACT:
A perfected metal detector for passageways, equipped with transmitter-recer Tx-Rx windings connected, using suitable amplifiers A and D, to an Analysis and Control Logic Unit LAC where the signals are compared; and also equipped with at least one corrective receiver winding CC on each side of a supervised passage used to supply information to the LAC unit about metal bodies in transit along paths close to it, with the aim of rendering uniform the interceptive sensivity throughout the transit area, even when more than one metal body is in simultaneous transit.
REFERENCES:
patent: 3758849 (1973-09-01), Susman et al.
patent: 3764860 (1973-10-01), Scheda
patent: 4075553 (1978-02-01), Bouverot et al.
patent: 4274090 (1981-06-01), Cooper
patent: 4779048 (1988-10-01), Aichele
patent: 4949037 (1990-08-01), Abe
C.E.I.A. - Costruzioni Elettroniche Industriali Automatismi - S.
Kostak Victor R.
Miller John W.
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